JPS63314548A - Image recorder - Google Patents

Abstract

PURPOSE:To prevent the unevenness of transfer from occurring by providing a fixed guide which is arranged just before superposed and guides image receiving material or photosensitive material to a transfer part and a pressurizing means for pressurizing the image receiving material or the photosensitive material to the fixed guide. CONSTITUTION:The fixed guide 50 which is arranged just before superposed and guides the image receiving material 32 or the photosensitive material 16 to the transfer part 28 is provided in the titled device. And also the pressurizing means 52 for pressurizing the image receiving material 32 or the photosensitive member 16 to the fixed guide 50 is provided there. Since the image receiving material 32 or the photosensitive material 16 which are guided to the transfer part 28 by the fixed guide 50 are pressurized to the fixed guide 50 by the pressurizing means 52 they are superposed after correcting the deformation of the image receiving material or the photosensitive material caused by heat, etc., and the image receiving material and the photosensitive material can be surely contacted without involving air between them. Thus, the unevenness of transfer is prevented from occurring and the image can be favorably transferred on the image receiving material.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an image recording device that obtains an image on an image-receiving material by transferring an image recorded on a photosensitive material to the image-receiving material.

[Prior Art] As shown in Japanese Patent Application Laid-open No. 11i 59-75247, an image recording apparatus for obtaining color images using a photosensitive material is one that exposes an image to the photosensitive material and then sends it to a heat development section. It is known that an image-receiving material is brought into close contact with a material and an image is transferred to the image-receiving material through a transfer process.

When transferring an image from the photosensitive material to the image receiving material by bringing the image receiving material into close contact with the photosensitive material, the photosensitive material and the image receiving material are fed between a pair of rollers and overlapped in a heated state.

[Problems to be Solved by the Invention] However, since the photosensitive material and the image-receiving material are deformed by heat from a heater etc. before being fed between the pair of rollers, air may enter between the image-receiving material and the photosensitive material that are overlapped. may be involved. When this type of transfer is performed, the image is not transferred to the image-receiving material in areas where air is trapped, resulting in uneven transfer.

In consideration of the above facts, the present invention aims to provide an image recording device that can transfer an image well to an image-receiving material without causing transfer unevenness.

c. Means and operation for solving the problem] The present invention provides a fixed guide for overlapping a photosensitive material and an image-receiving material and guiding the material to the transfer section; It is characterized by comprising a pressurizing means for applying pressure.

According to the present invention, the image receiving material or photosensitive material guided to the transfer section by the fixed guide is pressed against the fixed guide by the pressing means. As a result, deformation of the image-receiving material or photosensitive material due to heat or the like is corrected and the materials are superimposed. As a result, the image-receiving material and the photosensitive material are reliably brought into close contact with each other without introducing air between the image-receiving material and the photosensitive material. Therefore, the occurrence of transfer unevenness is eliminated, and the image can be transferred satisfactorily to the image-receiving material.

The image recording apparatus of the present invention includes a heat developing section that heat-develops an exposed heat-developable photosensitive material, and a transfer section that heats the heat-developed photosensitive material and image-receiving material by overlapping them and transferring the image to the image-receiving material. Alternatively, the heat development section and the transfer section may be provided at a rotating location, that is, the exposed heat-developable photosensitive material and the image-receiving material may be overlapped and heated. However, it may be provided with a development and transfer section that performs thermal development and thermal transfer at the same time.

Further, in the image recording apparatus of the present invention, for example, US Pat. No. 4,430,415, US Pat.
No. 0626, No. 4503137, JP-A-59-15
No. 4445, JP-A-59-165054, JP-A-59
-180548, JP 59-218443, JP 60-120356, JP 59-209563, JP 60-79709, JP 60-16958
5, Japanese Patent Application No. 60-244873, a heat-developable photosensitive material (## developable photosensitive element) and an image-receiving material (dye fixing element) can be used.

[Embodiments of the Invention] The image recording apparatus of the present invention will be described below, taking as an example a case where thermal development and thermal transfer are performed simultaneously.

FIG. 2 shows an image recording apparatus 1O showing an embodiment of the present invention.

In this image recording apparatus IO, a magazine 14 is mounted on a machine stand 12 and accommodates a photothermographic material 16. The photosensitive material 16 in the magazine 14 is pulled out from its outer periphery, cut into a predetermined length by the cutter 18, and then wound around the outer periphery of the exposure drum 20 (in the direction of arrow A in FIG. 2). After exposure, the exposure tram 20 is reversed and the photosensitive material 16 is peeled off by the scraper 24. After the cleaning section 33 removes dust etc. attached to the exposed surface of the photosensitive material 16, the photosensitive material 16 is removed from the water application section 34. The image is then sent to the development and transfer section 28 through the.

On the other hand, the image receiving paper 32 accommodated in the tray 30 is cleaned by a cleaning section 35 having the same shape as the cleaning section 33.
After removing dust and the like adhering to the transfer surface, the photosensitive material 16 is sent to the development transfer section 28, where it is superimposed on the photosensitive material 16 by a pair of rollers 46, and then heated by a heater in the development transfer section 28. As a result, the photosensitive material 16 is developed, and the developed image is transferred to the image receiving paper 32.

After the transfer is completed, the photosensitive material 16 is stored in a waste tray 38 via a peeling section 36, and the image receiving paper 32 is sent out via a drying section 40 to a take-out tray 42.

As shown in FIG. 1, a pair of rollers 46 disposed in the development transfer section 28 have heaters 45 disposed on opposite sides of the conveyance path for the photosensitive material 16 and the image receiving paper 32, respectively. The temperature of the pair of rollers 46 is raised to a predetermined temperature by the heater 45. A fixed guide 48 for guiding the photosensitive material 16 between the pair of rollers 46 is arranged on the input side of the pair of rollers 46 for the photosensitive material 16 and the image receiving paper 32 . This fixed guide 48 is in the shape of a thin plate, one end of which is bent into an L shape.
It is fixed at 8A. The other end of the fixed guide 48 extends to just in front of the pair of rollers 46. A fixed guide 50 is arranged above this fixed guide 48.

The fixed guide 5o is formed into a V-shape with a bent intermediate portion of a plate material. One side 50A of the V-shape is disposed facing the fixed guide 48, and the photosensitive material 16
passes between this side 50A and the fixed guide 48 and is guided between the rollers 46.

The folded end of the other side 50B of the V shape is the machine frame 28
It protrudes outward from A. Also, on the side 50B there is a receiving paper 32.
A nonwoven fabric 58 is attached to the guide surface. This non-woven fabric 58 can be made of a well-known material, as long as it is a flexible material. A spring guide 52 as a pressing means is arranged so as to press this non-woven fabric 58 against the fixed guide 50.

The fly guide 52 has a plate shape with a thickness of 0.02 mm to 0-6 mm, and as shown in FIG. For prevention purposes, it is folded back to form a folded portion 52B.

The spring guide 52 has elasticity and is preferably made of stainless steel, or may be made of synthetic resin as long as it has elasticity equivalent to stainless steel.

This spring guide 52 is attached to the mounting portion 5 as shown in FIG.
2A is fixed to a mounting base 54 with bolts 56, and the mounting base 54 is fixed to the machine frame 28A of the development and transfer section 28. As a result, the spring guide 52 is fixed to the machine frame 28A via the mounting base 54.

When the spring guide 52 is assembled to the machine frame 28A, the middle portion thereof has a straight shape as shown by the solid line in FIG. However, after that, the fixed guide 50 is inserted and fixed from the right side in FIG. 1 toward the pair of rollers 46 to the appropriate position δ, thereby being assembled. Therefore, the intermediate portion of the spring guide 52 is curved by the fixed guide 50 as shown by the two-dot chain line in FIG. 4, and the fixed guide 50 is biased in the direction of arrow B in FIG. 1 with a predetermined biasing force.

The mounting position of the fixed kite 50 and the spring guide 52 is such that the image receiving paper 32 is fed between the spring guide 52 and the nonwoven fabric 58 as shown in FIG. 3, and is guided between the pair of rollers 46. It has been decided.

Even if the image receiving paper 32 is deformed by the heat of the heater 45 when it passes between the spring guide 52 and the nonwoven fabric 58, this deformation is prevented because it is held between the spring guide 52 and the nonwoven fabric 58. It is about to be corrected. Further, the nonwoven fabric 58 allows dust and the like attached to the transfer surface side of the image receiving paper 32 to be removed. The larger the contact area between the nonwoven fabric 58 and the image receiving paper 32, the greater the cleaning effect, and in this embodiment, the contact length is set to 2 to 4 mm.

Also, a spring guide 52 that presses the image receiving paper 32 against the nonwoven fabric 58
The biasing force in the direction of arrow B is larger than the pressing force that can correct the deformation of the image receiving paper 32, and the spring guide 52 of the image receiving paper 32
The conveying force for conveying between the paper 58 and the nonwoven fabric 58 is set to be lower than the rigidity of the image receiving paper 32.

The tip of the spring guide 52 on the folded portion 52B side is extended to just before the gap between the pair of rollers 46.

Furthermore, since this spring guide 52 is placed near the heater 45, its temperature is increased by the heat of the heater 45.
A hot ironing effect is produced when the image receiving paper 32 is pressed against the nonwoven fabric 58. In addition, the spring guide 5,
2 comes into contact with the image receiving paper 32 in a state where the temperature has increased.
The gelatin coated on the transfer surface of the image-receiving paper 32 is warmed and the humidity becomes low (40 to 50%), so that less dust and the like adhere to the transfer surface.

The operation of this embodiment will be explained below.

The image receiving paper 32 fed from inside the tray 42 is moved to a fixed guide 50.
The photosensitive material 16 is in a standby state just before the fixed guide 50 and the side 50A of the fixed guide 5o, and at the same time the photosensitive material 16 is fed between the fixed guide 5° and the spring guide 52.

The image receiving paper 32 fed between the fixed guide 50 and the spring guide 52 is conveyed without stopping while being pressed by the spring guide 52 to the nonwoven fabric 58 on the fixed guide 50. As a result, the deformation of the image receiving paper 32 caused by the heater 45 is corrected and the image receiving paper 32 is made flat, and the pair of rollers 4
The photosensitive material 16 is overlapped and brought into close contact with the photosensitive material 16 between 6 and 6. 9. Since the image-receiving paper 32 is brought into close contact with the photosensitive material 16 in a flat state, air is not trapped between the image-receiving paper 32 and the photosensitive material 16.9. Therefore, uneven transfer does not occur, and the image receiving paper 3
A good image can be transferred to 2.

Further, since the transfer surface of the image receiving paper 32 is conveyed without stopping while being pressed against the nonwoven fabric 58 by the spring guide 52, dust and the like adhering to this transfer surface are wiped off and removed.

In this case, when the image receiving paper 32 conveyed between the spring guide 52 and the fixed guide 50 is once stopped and then conveyed again,
Dust, etc. will adhere to the transfer surface again, and the removal effect of wiping the dust, etc. will be reduced.

The photosensitive material 16 and the image-receiving paper 32 after being deposited are developed by a pair of rollers 46 while being transported by a transport roller (not shown) disposed in the development transfer section 28, and then sent to the peeling section 36. The photosensitive material 16 and the image receiving paper 32 are separated.

The peeled photosensitive material 16 is stored in a waste tray 38,
Receiving paper 32 is fed to tray 42 and taken out.

Next, another example of the pressurizing means in the present invention will be explained.

FIG. 5 shows a spring guide 60 as a pressurizing means.

Like the spring guide 52 of the previous embodiment, this spring guide 60 has a plate shape with a thickness of 0.02 mm to 0.6 mm, and one end is similarly bent to provide attachments 81!60A, and the other end has a folded portion. 60B is provided. Further, at the other end, rectangular notches 60C are provided at three locations spaced apart in the width direction of the image receiving paper 32 being conveyed.

The spring guide roller 0 has the effect of removing warpage in the width direction of the image receiving paper 32.

Next, a third example of the pressurizing means in the present invention will be explained.
I do.

FIG. 6 shows a spring guide 63 as an example of the third pressurizing means.

The spring guide 63 of the third example is the spring guide 5 of the above embodiment.
A mounting part 63 is made of a plate having the same thickness as 2 and has one end bent.
A is provided, and a fold 163B is provided at the other end. Further, the end opposite to the attachment portion 63A has a rectangular notch 63 corresponding to the widthwise intermediate portion of the image receiving paper 32 being conveyed.
C is provided. As a result, the middle part of the image receiving paper 32 in the width direction is not pressed, so that the back surface of the image receiving paper 32 is not damaged, which is particularly effective when using a transparent photosensitive material such as OHP paper (overhead projector).

This spring guide 63 is connected to a pair of rollers 46 as in the previous example.
It is placed just in front of the machine frame 28A and is fixed to the machine frame 28A.

Note that the spring guides 52, 60.
63, the spring guide 52 connects the image receiving paper 32 to the non-woven fabric 58.
Since the area to be pressed is wide, it is most effective in removing dust etc. adhering to the transfer surface.

In the embodiments described above, the spring guides 52, 60, 63 are used as the pressing means, but rollers may be used as the suppressing means to squeeze the image receiving paper, and the image receiving paper 32 is moved between the fixed guide and the spring guides 52, 60, 63. It can be applied to anything that can be clamped and flattened. However, when using rollers, if the diameter of the rollers is increased, it becomes impossible to reliably guide the image receiving paper that is not far from the pair of rollers between the pair of rollers, so it is preferable that the diameter is small. However, if the diameter is made small, this roller may wind up the image receiving paper and cause the image receiving paper to deviate from its normal movement trajectory, so it is necessary to provide a separate guide for the image receiving paper.

Further, in the above example, the case where the deformation of the image receiving paper 32 is corrected has been explained, but the present invention may be applied to the case where the deformation of the photosensitive material is corrected as long as it is not coated with water.

[9. Effect of light] As explained above, the present invention includes an image recording image-receiving material in which a photosensitive material and an image-receiving material are overlapped and transferred in a transfer section, or a fixed guide that guides the photosensitive material to the transfer section; and a pressurizing means for pressurizing the image-receiving material or photosensitive material against the fixed guide, and since the image-receiving paper or photosensitive material is overlapped in a flat state and brought into close contact with each other, air is drawn between them. As a result, uneven transfer does not occur, so an excellent effect can be obtained in that a good image can be transferred to the image receiving paper.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view showing a part of the development transfer section, Fig. 2 is a cross-sectional view showing an image recording device showing an embodiment of the present invention, and Fig. 3 shows the relationship between the spring guide, fixed guide, and image receiving paper. 4 is a perspective view showing a first example of a spring guide, FIG. 5 is a perspective view showing a second example of a spring guide, and FIG. 6 is a perspective view showing a third example of a spring guide. be. io... Image recording device, 16... (thermal development) photosensitive material, 28... Development transfer section, 32... Image receiving paper, 50... Fixed guide, 52.60.63... Spring guide .

Claims (1)

[Claims] (1) An image recording device that superimposes a photosensitive material and an image-receiving material and transfers them in a transfer section, the fixed guide being disposed immediately before the superposition and guiding the image-receiving material or the photosensitive material to the transfer section; An image recording apparatus comprising: a pressing means for pressing the image-receiving material or the photosensitive material against the fixed guide.